package com.dmcloud.zuul.config;

import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

/**
 * Created by xiaodao
 * date: 2020/4/23
 */
@Configuration
public class WebConfig {


    @Bean
    public FilterRegistrationBean<CorsFilter> corsFilter() {
        //1.添加CORS配置信息
        CorsConfiguration config = new CorsConfiguration();
        //1) 允许的域,不要写*，否则cookie就无法使用了
        // config.addAllowedOrigin("http://manage.jeepupil.top");
        // config.addAllowedOrigin("http://www.jeepupil.top");
        config.addAllowedOrigin("*");
        config.addAllowedHeader("*");
        config.addAllowedMethod("*");

        //2) 是否发送Cookie信息
        config.setAllowCredentials(true);
        //3) 允许的请求方式
        config.addAllowedMethod("OPTIONS");
        config.addAllowedMethod("HEAD");
        config.addAllowedMethod("GET");
        config.addAllowedMethod("PUT");
        config.addAllowedMethod("POST");
        config.addAllowedMethod("DELETE");
        config.addAllowedMethod("PATCH");
        // 4）允许的头信息
        config.addAllowedHeader("*");
        config.setMaxAge(18000L);

        //2.添加映射路径，我们拦截一切请求
        UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();
        configSource.registerCorsConfiguration("/**", config);

        //3.返回新的CorsFilter.
        CorsFilter corsFilter = new CorsFilter(configSource);
        FilterRegistrationBean<CorsFilter> bean = new FilterRegistrationBean<CorsFilter>(corsFilter);
        bean.setOrder(Ordered.HIGHEST_PRECEDENCE);
        return bean;
    }
}
